Fastening device for hoops.



G. A. MOORE.

FASTENING DEVICE FOR HOOPS.

APPLICATION FILED JAN.14, 1914.

1 1 1 8,21 3. Patented Nov. 24, 1914.

12 k\\ Fig.3

GEORGE A. MOORE, OI MEDFCRD, MASSACHUSETTS.

FASTENING DEVICE FUR HOOPS.

Specification of Letters Patent.

Patented Nov. ea, ieia.

Application filed January 14,4914. Serial No. 811,937.

To all whom it may concern:

Be it known that I, GEORGE A. MOORE, of Medford, in the county of Middlesex and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Fastening Devices for Hoops, of which the following is a specification.

This fastening device is especially designed for tightening the outer of the two hoops used in embroidery, and it comprises a terminally threaded member attached to one of the ends of the split hoop, a terminally headed member attached to the other end of the split hoop, and a thimble screwing upon said threaded member and engaging said headed member.

Referring to the drawings forming part of this specification, Figure 1 is a plan View of a split hoop having my fastening device attached thereto. Fig. 2 is an enlarged view of the device alone, said thimble being shown in section. Fig. 3 is a longitudinal section of said thimble before it has been applied to said members.

The hoop 1 is of usual construction, being split apart at 2 to permit of its being tightened and loosened, and to the end section 3 is fastened a member 4 having an end ofiset and threaded, as at 5. A member 6 is fastened to the end section 7 and has an endofi'set and'headed, as at 8, 9.

The thimble 10 is originally formed cup-- shaped, with a threaded hole 11 in its hottom adapted to be screwed upon the threaded portion 5 of said member 4. The hole drilled or otherwise made in said thimble is slightly larger than the diameter of the head 9. Said head bein introduced within said hole 12, the rim 0 the same is spunor otherwise pressed inward about said head, as shown in Fig. 2, so as to be incapable of being pulled away from said unember 6. The belly 13 of the thimble is preferably roughened or knurled to permit of its readier turning by the users thumb and fingers.

By revolving the thimble in one direction, the members 4 and 6, and hence the hoopends, are brought closer together and the hoop contracted in diameter, and by revolving it in the other direction, the hoop is expanded.

To enable the rotation of the thimble in the last-mentioned direction to forcibly expand the hoop, the head 9 of the member 6 is given a flat outer face 14 loosely abutting against a shoulder 15 within the thimble, whereby the unscrewing of the thimble forces the members 4 and 6 apart and so expands the hoop.

In addition to its economy of manufacture and convenience in use, this fastening device has no projections or crevices upon which thehands of its user may get scratched and where the embroidery yarn can catch.

Although I have described and illustrated in Figs. 1' and 2 the members 4 and 6 as separate and each fastened to an end of the hoop 1, I do not wish to restrict myself thereto.

What I claim as my invention is:

A turn buckle comprising a member having a threaded end, a cup-shaped thimble having its bottom apertured and threaded to receive said threaded end, and a member GEORGE A. MOORE.

Witnesses JOHN W. MoCoRMAoK, A. B. UPHAM. 

